1 /*
2  * xen/arch/arm/arm32/proc-caxx.c
3  *
4  * arm V7 Cortex A15 and A7 initialisation
5  *
6  * Julien Grall <julien.grall@linaro.org>
7  * Copyright (c) 2014 Linaro Limited.
8  *
9  * This program is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * This program is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17  * GNU General Public License for more details.
18  */
19 #include <asm/procinfo.h>
20 #include <asm/processor.h>
21 
22 #define ACTLR_SMP (1 << 6)
23 
caxx_vcpu_initialise(struct vcpu * v)24 static void caxx_vcpu_initialise(struct vcpu *v)
25 {
26     /* If the guest has more 1 VCPU, enable the SMP bit in ACTLR */
27     if ( v->domain->max_vcpus > 1 )
28         v->arch.actlr |= ACTLR_SMP;
29     else
30         v->arch.actlr &= ~ACTLR_SMP;
31 }
32 
33 const struct processor caxx_processor = {
34     .vcpu_initialise = caxx_vcpu_initialise,
35 };
36